Electromagnetic water heater

Abstract

A method of heating water comprises providing a helical passageway in juxtaposition a metal core rod and a coil through which an alternating current is passed. The alternating current generates an alternating longitudinal magnetic field that passes through the metal core rod and gives rise to eddy currents that generate heat. Water flowing along a helical passageway is heated and at the same time the water is magnetized as it cuts across lines of magnetic force of the alternating longitudinal magnetic field. A magnetized water generator for uses with the method comprises two bulkheads, a coil, a metal core rod and an outer tube. The core rod is disposed within the outer tube to create a helical passageway. The outer tube and core rod are disposed within the coil. A bulkhead is disposed on each end of the outer tube. Water enters the helical passageway through the water inlet in one end bulkhead and out of the helical passageway via a water outlet on the other end bulkhead.

What I claim is:  
     
       1. An electromagnetic water heater comprising: 
       an outer cover,  
       a water tank within the cover for receiving and storing a quantity of heated water,  
       a heating element having an inlet and an outlet connected with the water tank,  
       a first valve for allowing a flow of cold water to the inlet of the heating element,  
       a water pump having an inlet connected with the water tank and an outlet,  
       a second valve connected to the water pump outlet for allowing a flow of water from the water tank to the heating element inlet, and  
       a controller for selectively opening the first or second valves to provide and maintain a quantity of heated water in the water tank, wherein the heating element further comprises:  
       an electric coil,  
       an outer tube disposed within the coil,  
       a metal core rod disposed within the outer tube,  
       two end bulkheads, one at each end of the outer tube, and  
       a water inlet in one end bulkhead and a water outlet on the other end bulkhead, wherein the metal core rod has a screw-shaped through-flute in its surface and two holes separately on its two ends to connect the screw-shaped through-flute with the water inlet and the water outlet, the screw-shaped through-flute creating a helical passage between the metal core rod and the outer tube between the water inlet and water outlet.  
     
     
       2. An electromagnetic water heater as claimed in  claim 1  wherein an alternating current flows in the coil, the alternating current generating an alternating longitudinal magnetic field which passes through the metal core rod and gives rise to eddy currents that generate heat which is absorbed by water flowing along the helical passageway, and wherein at the same time the water is magnetized as it cuts across lines of magnetic force of the alternating longitudinal magnetic field. 
     
     
       3. An electromagnetic water heater as claimed in  claim 1  further including a temperature controller for preventing operation of the electromagnetic water heater without water. 
     
     
       4. An electromagnetic water heater as claimed in  claim 1  further including an electrical leakage protector for cutting of the power when there is an electrical leakage. 
     
     
       5. An electromagnetic water heater as claimed in  claim 1  further including a grounding safety system. 
     
     
       6. An electromagnetic water heater as claimed in  claim 1  further including a safety valve mounted on the magnetized water generator.